Datasheet > 20XS4200

20XS4200

更新时间： 2024-11-29 12:54:55

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		开关
页数	文件大小	规格书
60页	1592K
描述
Dual 24 V, 20 mOhm High Side Switch

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20XS4200 数据手册

Document Number: MC20XS4200

Rev. 2.0, 6/2012

Freescale Semiconductor

Advance Information

Dual 24 V, 20 mOhm High Side

Switch

20XS4200

The 20XS4200 device is part of a 24 V dual high side switch product

family with integrated control, and a high number of protective and

diagnostic functions. It has been designed for truck, bus, and industrial

applications. The low R_DS(ON)channels (<20 mΩ) can control different

load types; bulbs, solenoids, or DC motors. Control, device

configuration, and diagnostics are performed through a 16-bit serial

peripheral interface (SPI), allowing easy integration into existing

applications.

HIGH SIDE SWITCH

Both channels can be controlled individually by external/internal

clock signals, or by direct inputs. Using the internal clock allows fully

autonomous device operation. Programmable output voltage slew-

rates (individually programmable) helps improve electromagnetic

compatability (EMC) performance. To avoid shutting off the device

upon inrush current, while still being able to closely track the load

current, a dynamic over-current threshold profile is featured. Switching

current of each channel can be sensed with a programmable sensing

ratio. Whenever communication with the external microcontroller is

lost, the device enters a Fail-safe operation mode, but remains

operational, controllable, and protected.

FK SUFFIX (PB-FREE)

98ASA00428D

23 PIN PQFN (12 X12 mm)

Features

ORDERING INFORMATION

Temperature

• Two fully-protected 20 mΩ (@ 25 °C) high side switches

• Up to 3.0 A steady-state current per channel

• Separate bulb and DC motor latched over-current handling

• Individually programmable internal/external PWM clock signals

• Over-current, short-circuit, and over-temperature protection with

programmable autoretry functions

Device

Package

Range (T )

MC20XS4200FK

-40 to 125 °C

23 PQFN

• Accurate temperature and current sensing

• Open-load detection (channel in OFF and ON state), also for LED

applications (7.0 mA typ.)

• Normal operating range: 8.0 - 36 V, extended range: 6.0 - 58 V

• 3.3 V and 5.0 V compatible 16-bit SPI port for device control, configuration and diagnostics at rates up to 8.0 MHz

V_DD

V_PWR

20XS4200

V_DD

VDD

CLOCK

FSB

VPWR

I/O

SCLK

CSB

SCLK

CSB

RSTB

IN0

HS0

HS1

LOAD

MCU

I/O

IN1

CONF0

CONF1

FSOB

SYNC

CSNS

I/O

A/D

GND

Figure 1. Simplified Application Diagram

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

12 3 4 5 6 7...60

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